jQuery.extend(jQuery.fn.dataTableExt.oSort, {
    "date-uk-pre": function(a) {
        if (a == null || a == "")
            a = "01/01/90";
        var ukDatea = a.split('/');
        return (ukDatea[2] + ukDatea[1] + ukDatea[0]) * 1;
    },
    "date-uk-asc": function(a, b) {
        return ((a < b) ? -1 : ((a > b) ? 1 : 0));
    },
    "date-uk-desc": function(a, b) {
        return ((a < b) ? 1 : ((a > b) ? -1 : 0));
    }
});